Paint mist separating device

Abstract

The invention relates to a paint mist separating device (40) having a paint mist separating frame element (44) and a paint mist separating unit (10) that can be attached thereto, wherein the paint mist separating frame element (44) has an inflow opening (46), wherein a pivotable support element (42) projects from the vertical edge lines thereof, wherein the paint mist separating unit (10) can be attached to the paint mist separating frame element (44) by means of the support elements (42), by virtue of the support elements (42) extending into openings (36) or recesses of the paint mist separating unit (10) and / or extending through such openings in a state pivoted by 90°, for example.

Description

[0001] 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0002] Description

[0003] Paint mist separator device

[0004] The proposed innovation concerns the technical field of separating particles carried along with a raw gas stream from that stream. The particles to be separated include, for example, dye or paint particles (paint mist), and the particles to be separated are collectively referred to as particles.

[0005] From EP 2 532 409 B, a paint mist separation device in the form of a paper mesh filter module with an outer frame, an inlet and an outlet opening in the frame and a paper mesh filter arranged three-dimensionally inside the frame is known.

[0006] The paper mesh filter inside the frame determines the effective surface area for particle separation. This effective surface area can be increased by adding further layers of paper mesh and / or a pre-separation unit or similar device upstream (in the direction of the raw gas flow) of the paint mist separation device.

[0007] Pre-separation units and their attachment to a respective paint mist separation device are known, for example, from DE 20 2021 102 947.1, DE 20 2021 104 962.6 and from DE 20 2021 106 573.7.

[0008] From DE 20 2021 102 947.1 a paint mist separation device functioning as a pre-separation unit is known, which is used by 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0009] It is intended for external mounting on or in front of a filter and / or separation module functioning as a paint mist separator. Mounting tabs are provided, which can be inserted into an inlet opening of the filter module or into a gap between the filter module and a housing containing the filter module. The tabs are part of the respective pre-separation unit.

[0010] From DE 20 2021 104 962.6, a separation device functioning as a paint mist separator is known, comprising a frame which, in its operational state, has two openings, each serving as an inlet and outlet opening. The frame material, which closes these openings before they are opened, can be combined, and the resulting combination can be attached to the frame in the area of ​​the inlet opening, where it functions as a pre-separation unit. The parts forming the pre-separation unit are detached from the frame of the paint mist separator.

[0011] From DE 20 2021 106 573.7, a pre-separation unit is known which is intended for attachment to an inlet opening of a paint mist separator. The pre-separation unit comprises two parts integrally connected to one another or two parts connectable to one another, similar to the pre-separation unit known from DE 20 2021 104 962.6. The difference is that the parts are not part of the frame of the paint mist separator.

[0012] Before the description presented here turns specifically to the proposed innovation, some terms will be explained, with the explanations then also applying to the proposed innovation itself: 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0013] In the prior art, a strict distinction is not made between filtration and separation when naming individual components. For example, a module intended for separating paint mist or the like is often referred to as a filter module or at least also as a filter module. The same applies to other terms such as filter layer, filter medium, filter array, and so on. This results—at least as far as the patent rights and applications of the applicant for the proposed innovation are concerned—from the understanding that a raw gas stream carrying particles carries fewer particles downstream of the paint mist separation device, i.e., after passing through the paint mist separation device, than upstream of the paint mist separation device. The raw gas stream thus loses, in a sense, some of the particles it previously carried as it passes through the paint mist separation device.This is precisely the purpose of the paint mist separator: to significantly reduce the number of particles at the outlet of the separator. This reduction in the number of particles is achieved by separating particles carried along with the raw gas stream on designated surfaces.

[0014] In this context, it should be noted that a filter—namely, a filter fleece, filter mat, or the like—would be struck by the paint particles carried by the raw gas stream across its entire surface if it lacked sufficiently large openings in its surface and if the surface exposed to the flow was oriented perpendicular or substantially perpendicular to the flow direction. This would cause the surface to clog within a very short time. If the flow through the filter then collapses, no further paint mist separation would occur. Consequently, such a filter is subject to paint mist. 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0015] Separation is not considered and it is not a paint mist separation device in the sense of the term used here.

[0016] A paint mist separation device is designed and suitable for separating particles carried along with a raw gas stream, in particular paint or varnish particles.

[0017] The paint mist separation device described in EP 2 532 409 B comprises, in the form of a paper mesh filter, at least one paint mist separation element and a frame element, referred to therein as a frame, designed to hold it. A cardboard box, for example, is suitable as the frame element designed to hold the paint mist separation element, as also described in EP 2 532 409 B. The frame element of a paint mist separation device has a three-dimensional shape. Examples of three-dimensional shapes are cubes and cuboids. The frame element has an inlet opening in one side face for the entry of the raw gas stream and an outlet opening in another side face for the exit of the raw gas stream. The sides with the inlet opening and the outlet opening are usually opposite each other. The frame element surrounds the at least one paint mist separation element.Upon entering the interior of the frame element through the inlet opening, the raw gas stream encounters at least one paint mist separation element.

[0018] One objective of the proposed innovation is to provide a simple yet sufficiently robust method for attaching a paint mist separation unit to the outside of a paint mist separation device and to the outside in front of a paint mist separation device. 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0019] When mounted externally upstream of the paint mist separator, the paint mist separator unit functions as a pre-separation unit and is itself also designed and suitable for separating particles carried along in a raw gas stream, particularly paint or varnish particles. "Externally" means that the paint mist separator unit is located upstream of the paint mist separator in the direction of the raw gas stream. The combination of the paint mist separator and the attached paint mist separator unit is itself a paint mist separator and functions as a paint mist separator. The device upstream of which the paint mist separator unit is mounted includes a paint mist separator frame element, which determines its external shape and is sometimes referred to below simply as the frame element. This frame element can be, for example, a cardboard box or similar material, such as might otherwise be used for packaging purposes.The paint mist separation device thus comprises a frame element and a paint mist separation unit attached to or attachable in front of it.

[0020] The above-mentioned problem is solved by means of a paint mist separation device with the features of claim 1, wherein the paint mist separation device is a combination of a frame element and a paint mist separation unit attached or attachable to it.

[0021] The paint mist separator is designed – in a generally known manner – for interchangeable installation in a paint shop and for separating paint particles carried along with a raw gas stream. The paint mist separator comprises a frame element and a separation unit, sometimes referred to simply as the separation unit. 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0022] Paint mist separation unit. The separation unit can be attached to the frame element and, if necessary, is already attached to it. The frame element has a large central opening through which the raw gas flow enters or passes through the frame element. This opening is the inlet opening. The frame element is characterized by the fact that at least one pivotable support element extends from each vertical edge of the inlet opening; for example, exactly one support element extends from each vertical edge. The inlet opening has a roughly rectangular shape and is bounded by four perpendicular edge lines, namely two lateral edge lines and a lower and an upper edge line. The designation of individual edge lines as lateral edge lines already refers to an installation situation of the paint mist separation device.In the installed state, the lateral edge lines are oriented vertically, or at least substantially vertically. These are the aforementioned vertical edge lines. Pivoting or pivot-movable support elements extending from these edge lines can also be considered doors or door leaves, because, depending on the design (size and shape of the door / door leaf), the pivoting action creates the inlet opening previously closed by the door leaf. The support elements are designed to carry the separator unit. When and by virtue of the support elements carrying the separator unit, the separator unit is attached to the frame element. To carry the separator unit, the support elements are pivoted against a plane defined by the frame element, namely the plane of the frame element's end face, for example, by 90° or at least substantially by 90°.The supporting elements therefore form an angle with the surface of the frame element / with the front face of the frame element, for example 091 043 P WO NeuFilter GmbH, Gronau (DE).

[0023] Angles of 60° to 120°, advantageously an angle of 70° to 110°, preferably an angle of 80° to 100°, in particular an angle of 90° or substantially 90°. If and by extending in this orientation into openings or recesses of the paint mist separation unit and / or through such openings or recesses, the support elements carry the paint mist separation unit and the paint mist separation unit is attached to the frame element.

[0024] One advantage of the proposed solution is that openings or recesses which a paint mist separation unit already has for the purpose of separating paint particles can be used for attaching such a paint mist separation unit to a respective frame element.

[0025] In a specific design, the paint mist separator for interchangeable installation in a paint shop and for separating paint particles carried along with a raw gas stream comprises, for example, a paint mist separator base module according to EP 2 532 409 B. The paint mist separator has a frame element with an inlet opening in one side surface, and the frame element is designed to accommodate at least one paint mist separator inside it. Swivel-mounted support elements extend from the vertical edges of the inlet opening, and each support element carries a paint mist separator unit, which is then attached to the frame element. Otherwise, the above and following descriptions apply accordingly. 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0026] Cardboard, especially corrugated cardboard, is a suitable material for the supporting elements. A cardboard box, particularly corrugated cardboard, is a suitable material for the frame element. The supporting elements extending from the frame element are optionally integrally connected to it or, alternatively, joined by gluing or similar methods. Alternatively, metal is also a suitable material (for the supporting elements and / or the frame element). In this case, pyrolysis resistance is advantageous.

[0027] Advantageous embodiments of the proposed innovation are the subject of the further claims. References within the claims indicate the further development of the subject matter of the referenced claim by the features of the respective dependent claim. They are not to be understood as a waiver of the right to obtain independent, substantive protection for the features or combinations of features of a dependent claim. Furthermore, with regard to the interpretation of the claims and the description, when specifying a feature in a dependent claim in more detail, it should be assumed that no such limitation exists in the preceding claim or any more general embodiment of the device in question.Therefore, any reference in the description to aspects of dependent claims is to be read as a description of optional features, even without specific indication.

[0028] Advantageously, the support elements are designed to support the paint mist separation unit by resting on the upper edges of the support elements when attached to the frame element. The support elements exhibit at least the following characteristics: 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0029] The support elements have a width corresponding to their respective material thickness. This width creates a bearing surface at the upper edges of the support elements. The paint mist separation unit rests on this surface, or on sections or edges of it, specifically with sections of the edges of its respective openings or recesses, and is supported by the support elements when in contact with it. Therefore, no structural modification is necessary for the support elements to fulfill their function. This is especially true when the support elements are integrally connected to the frame element and, like opening door leaves, fold out from the plane of the frame element. The material thickness of the support elements then corresponds to the material thickness of the frame element (and the material of the support elements corresponds to the material of the frame element), and this material thickness results in a sufficient bearing surface to support the paint mist separation unit.

[0030] In one embodiment of the paint mist separation device, the separation unit comprises a plurality of paint mist separation surfaces, in particular parallel ones, hereinafter sometimes referred to simply as separation surfaces, and at least some of these separation surfaces have openings or recesses aligned with one another. Aligned with one another means that one can see through the openings or recesses aligned with one another in the direction of a straight line erected on the front face of the separation unit, in particular a normal erected on the front face of the separation unit. The aligned openings or recesses, through which one can see in this way, can also be described as being arranged one behind the other. The openings or recesses aligned with one another are each for a091 043 P WO NeuFilter GmbH, Gronau (DE)

[0031] A supporting element is provided. A first group of aligned openings or recesses is provided for one of the supporting elements, and a second group of aligned openings or recesses is provided for the other supporting element. Each supporting element extends into and / or through one of the groups of aligned openings or recesses.

[0032] Preferably, the paint mist separation unit has aligned openings or recesses in all paint mist separation surfaces, i.e., a first group and a second group of aligned openings or recesses in all paint mist separation surfaces.

[0033] The definition, according to which the separation unit has a first group and a second group of aligned openings or recesses in the separation surfaces, in particular a first group and a second group of aligned openings or recesses in all paint mist separation surfaces, and each support element extends into one of the groups of aligned openings or recesses and / or through one of these aligned openings or recesses, can also be written differently, namely that in the separation surface forming the front face of the separation unit there are at least two openings or recesses (one for each support element) which each align with openings or recesses in further separation surfaces, in particular with openings or recesses in all further separation surfaces.that all these openings or recesses are therefore located one behind the other and into these openings 091 043 P WO NeuFilter GmbH, Gronau (DE),

[0034] or recesses in which a supporting element extends into or through.

[0035] The openings of the aligned openings or recesses can be openings that are (also) intended to allow the raw gas stream to flow through them for particle separation. These are openings that are necessary for particle separation anyway, in particular openings 36 with at least one straight edge, for example rectangular or trapezoidal openings, namely, for example, trapezoidal openings as shown in DE 20 2021 102 947.1, DE 10 2021 206 818.9, DE 20 2022 102 215.1, or DE 20 2022 105 863.6. Advantageously, therefore, no additional slots or the like are required on the side of the paint mist separation unit. The paint mist separation unit can be used as is and can be attached directly to the frame element and its supporting elements.

[0036] As an alternative to using the openings already enclosed by the paint mist separation unit for particle separation, it is also possible for the paint mist separation unit to have at least one paint mist separation surface with parallel lateral slots (suspension slots) or the like, and for the support elements to extend into and / or through the suspension slots. If a support element extends into or through a suspension slot, the suspension slot encloses the support element. Enclosure is not necessary for suspension; a frame around the support element is sufficient. A suspension slot is thus a specific form of a support element frame, and accordingly, an advantageous design of a paint mist separation unit is characterized by this. - 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0037] The device is formed by parallel lateral support element enclosures, wherein the support elements extend into the support element enclosures and / or through the support element enclosures, and wherein, for example, suspension plates serve as support element enclosures.

[0038] Preferably, such parallel lateral support element recesses, for example suspension slots, function as the aforementioned aligned openings. The separation unit then comprises a plurality of, in particular, parallel separation surfaces, and within these, a first group and a second group of aligned support element recesses, each support element extending into and / or through one of the groups of aligned support element recesses. Thus, there are, in a sense, left and right aligned support element recesses, and a left support element extends into or through the left aligned support element recesses, and a right support element extends into or through the right aligned support element recesses.Preferably, the separation unit has aligned support element frames, in particular suspension slots, in all separation surfaces, i.e., a first, left group of aligned support element frames in all paint mist separation surfaces and a second, right group of aligned support element frames in all paint mist separation surfaces. The terms "left" and "right" refer to a separation unit attached to a paint mist separation device and a frontal view of the separation unit and the adjoining paint mist separation device. 091 043 P WO NeuFilter GmbH, Gronau (DE).

[0039] In an embodiment in which not all separation surfaces have aligned support element recesses in the form of suspension slots, for example, in that only a first, front separation surface of the separation unit and a last separation surface of the separation unit have aligned suspension slots, it is conceivable that the other separation surfaces have recesses instead of the suspension slots and in an area where a suspension slot would otherwise have to be located, for example, recesses functioning as support element recesses.

[0040] A suspension plate lies entirely within the area of ​​the respective separation surface. In the case of a recess in the separation surface, its edge coincides with a section of the separation surface's edge. For example, a suspension plate becomes a recess functioning as a support element frame when the material between the suspension plate and the adjacent edge of the separation surface is removed, i.e., when its upper and lower ends are cut to the edge. This creates a new edge of the separation surface, which includes part of the former suspension plate's edge. Such a recess offers the advantage that no insertion or passage of the support element is necessary, and that the separation surface lies between support elements due to the recesses and within the area of ​​the recesses.

[0041] The advantage of support element recesses in the form of suspension slots is that they effectively guide the support elements when the support elements are inserted into them. 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0042] The guide ensures a defined alignment of the support elements, thus making it particularly easy to insert the support elements into the openings and / or suspension slots of further paint mist separation surfaces.

[0043] In an advantageous embodiment, the support elements have a stepped upper edge profile (bearing surface profile) on their upper edge, which serves as the support surface for the separation unit, and this profile terminates in a stop. Such a stop (one stop at the end of each support element or one stop at the end of at least one support element) ensures a particularly secure hold for a separation unit attached to the support elements. Additionally or alternatively, such a stop can also be provided at the beginning of one or both support elements. In this case, the stop acts as a spacer and ensures sufficient clearance between the separation unit attached to the support elements and the surface of the frame element.

[0044] Preferably, a device with the following features serves as the paint mist separation unit: The paint mist separation unit (the device) is designed and configured for use with or in a paint mist separation device. Each paint mist separation device is designed and configured for interchangeable installation in a paint shop and for separating particles, in particular paint particles, carried along with a raw gas stream. The paint mist separation unit comprises several separation surfaces (paint mist separation surfaces), namely a first separation surface and further separation surfaces. The first separation surface is hereinafter referred to simply as the base surface for differentiation purposes. A first and a second 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0045] Further separation surfaces will be referred to below, for short and to distinguish them, as the first additional surface and second additional surface. These terms, and any further terms used below, serve only for unambiguous reference and do not imply any function.

[0046] The base surface and the additional surfaces preferably have a rectangular shape, particularly a square shape, and more preferably all separating surfaces have the same shape and size. The additional surfaces are characterized by the fact that they can be connected to the base surface, and conversely, the base surface is characterized by the fact that the additional surfaces can be connected to it. Multi-stage spacers are provided for this connection, namely at least two multi-stage spacers extending from the base surface. The spacers extend laterally from the base surface, starting from an edge line of the base surface (at least one spacer from each edge line). Typically, the at least two spacers extend from different edge lines, particularly from opposite edge lines. Optionally, the spacers are integrally connected to the base surface.

[0047] In short, a paint mist separation unit usable with the paint mist separation device proposed here is characterized by the following: The paint mist separation unit is designed and configured for use with or in a paint mist separation device, namely a paint mist separation device for interchangeable installation in a paint shop and for separating particles carried along with a raw gas stream, in particular paint particles. The paint mist separation unit comprises a separation surface – base surface – and at least two further separation surfaces. -091 043 P WO NeuFilter GmbH, Gronau (DE)

[0048] First additional surface, second additional surface. At least two multi-stage spacers are laterally attached to the first separation surface, i.e., the base surface. The further separation surfaces, i.e., at least the first and the second additional surface, can be stacked on the spacers at different levels, in particular at levels parallel to each other and / or to the plane of the first separation surface. Finally, the separation surfaces are each connected to each other in pairs by a single piece, for example, via a piece of material referred to below as a bridge section.

[0049] For such a pairwise one-piece connection, a one-piece connection of the base surface and the first additional surface on the one hand, and of the first additional surface and the second additional surface on the other, is possible. Likewise, a one-piece connection of the base surface and the first additional surface on the one hand, and of the base surface and the second additional surface on the other, is also such a pairwise one-piece connection. In other words: If the base surface and the first and second additional surfaces are symbolically designated A (base surface) and B (first additional surface) and C (second additional surface), the following combinations of one-piece connections are possible, for example: AB, BC or AB, AC, where a symbolically written connection xy, in which x and yj each denote a deposition surface A, B or C, is equivalent to a connection yx. All of this applies accordingly for more than two additional surfaces.

[0050] From CN 113842715 A, a paint mist separation unit with a plurality of separation surfaces is known, one of which can be referred to as the base surface and two of which can be referred to as the first and second additional surfaces. Die091 043 P WO NeuFilter GmbH, Gronau (DE)

[0051] Separation surfaces, including the base surface and any additional surfaces it encompasses, are connected to each other by means of lateral spacers, and in a sense, the separation surfaces can be stacked at different levels using these spacers. However, in the case of CN 113842715 A, the separation surfaces are all individual parts and therefore not connected to each other in pairs as single pieces.

[0052] A paint mist separation unit with multiple separation surfaces is also known from GN 209985061 U, one of which can be referred to as the base surface and two others as the first and second additional surfaces. In CN 209985061 U, the separation surfaces are also joined together in pairs by a single piece.

[0053] At best, only one of the additional surfaces, namely the one connected to the base surface, can be stacked in a plane parallel to the base surface using two tabs that may act as spacers. The other additional surface is also intended to be folded into another parallel plane, but this is done without these tabs. In the

[0054] Therefore, not all of the additional surfaces on the tabs (“spacers”) are stackable according to CN 209985061 U.

[0055] The advantage of the paint mist separation unit is that it can be set up for use very quickly and easily, especially by untrained personnel and / or on site; that no tools or additional materials are required for setup; and that the paint mist separation unit requires very little space until use, for example during transport. 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0056] The setup process is quick and easy because the separation surfaces are connected to each other in pairs as single units. This means there are no individual parts to handle and no separation surface can be lost. The connection between the individual separation surfaces results in an intuitive workflow for setup.

[0057] The minimal space requirement before use results from the fact that all parts of the paint mist separation unit, especially its separation surfaces and spacers, lie flat in a single plane. This is a particular advantage for the paint mist separation unit as a whole: it requires little space until use because it can be shipped and stored in a flat state. When shipped flat, the paint mist separation unit can be assembled on-site by connecting the additional surfaces to the base and its spacers. Only then does it take on a three-dimensional form; until then, the paint mist separation unit is essentially a two-dimensional structure (apart from the material thickness of the separation surfaces and the resulting thickness / height of the otherwise two-dimensional structure).Flat shipping allows for savings in transport costs and / or the shipment of a larger quantity of parts for the same transport costs.

[0058] Cardboard, especially corrugated cardboard, is a suitable material for the paint mist separation unit; for example, double-wall corrugated cardboard. Alternatively, metal can also be used. Pyrolysis capability is advantageous in this case. (Material for 091 043 P WO NeuFilter GmbH, Gronau (DE))

[0059] As mentioned above, a cardboard box, for example, can serve as the frame for a paint mist separation device designed and equipped to receive or mount a paint mist separation unit. However, a cardboard box (outer carton) is only one possible form of frame. A metal structure, preferably pyrolytic, in particular a metal lattice structure, or the like, surrounding the paint mist separation element, can also be used as a frame.

[0060] In a preferred embodiment of the paint mist separation unit, the spacers are foldable against the plane of the base surface, so that they form an angle of 60° to 120° with the base surface, advantageously an angle of 70° to 110°, preferably an angle of 80° to 100°, in particular a right angle or at least substantially a right angle, and the separation surfaces are integrally connected to each other in pairs by means of a bridge section, for example the base surface via a bridge section to the first additional surface and the first additional surface via a further bridge section to the second additional surface.The additional surfaces can be arranged in different planes, particularly parallel or at least substantially parallel planes, by folding the paint mist separation unit immediately before and immediately after each bridge section and by connecting it to the base surface, namely to its spacers. This results – in the case of rectangular or square separation surfaces and parallel separation surfaces – in a paint mist separation unit with a cubic shape (cuboid, particularly cube), and a paint mist separation unit with such a shape is particularly well suited for mounting in a frame of a paint mist separation device with self-assembly. 091 043 P WO NeuFilter GmbH, Gronau (DE).

[0061] cubic in shape or for external mounting on such a frame with a flat front due to the cubic shape. The spacers, which can be folded in this way, can be integrally connected to the base surface or attached to the base surface, for example by gluing.

[0062] When preparing the paint mist separation unit for use, the spacers are folded against the plane of the base surface so that they form an angle of 60° to 120° with the base surface, advantageously an angle of 70° to 110°, preferably an angle of 80° to 100°, in particular a right angle or at least substantially a right angle. The spacers are then, for example, perpendicular or at least substantially perpendicular to the plane of the base surface. Now the additional surfaces, namely their spacers, can be arranged on the base surface. For this purpose, the separation surfaces are connected to each other in pairs by means of a bridge section, for example, the base surface to the first additional surface by means of a bridge section, and the first additional surface to the second additional surface by means of another bridge section.The additional surfaces are folded by bending the paint mist separation unit immediately before and immediately after each bridge section towards the base surface and attached there to the spacers. This attachment results in an arrangement of the separation surfaces in several planes, one in front of or above the other, in particular in parallel or at least substantially parallel planes to each other and to the base surface. The bridge sections determine the distance between the separation surfaces. The bridge sections stabilize each additional surface and prevent deflection. The bridge sections also increase the overall stability of the paint mist separation unit. 091 043 P WO NeuFilter GmbH, Gronau (DE).

[0063] The advantage of this design is that it can be set up for use particularly quickly and easily. Because the individual separation surfaces (base surface, additional surfaces) are connected to each other via a bridge section, and the paint mist separation unit is folded (or can be folded) before and after each bridge section, a somewhat predetermined setup process results, since each additional surface can only be positioned in one direction on the spacers, and the bridge sections determine the distance between the separation surfaces.

[0064] An advantageous embodiment is one in which the base surface and the additional surfaces, initially flat and integrally connected, lie in a row, one behind the other. In this configuration, the base surface and the first additional surface are integrally connected in pairs, as are the first and second additional surfaces. Any further additional surfaces are also integrally connected in pairs. This applies analogously to any further additional surfaces. The paint mist separation unit is then assembled by alternating folding. The spacers are aligned so that they form an angle of 90° or approximately 90° with the plane of the base surface, and the base surface, together with the adjoining additional surfaces, is placed, for example, on a flat surface.The first additional surface is then folded towards the base surface and attached to the spacers. A second and possibly a third additional surface, etc. 091 043 P WO NeuFilter GmbH, Gronau (DE).

[0065] The first additional surface then extends beyond the base area, and by folding it in the opposite direction, the second additional surface is now folded towards the (bottommost) base area and attached to the spacers. If present, the third additional surface now extends beyond the base area. By again changing the direction of the folding, it is folded towards the (bottommost) base area and attached to the spacers. This alternating folding process continues with a larger number of additional surfaces. The same applies if the base area and the additional surfaces, when connected as a single unit and initially flat, form an L-shape. The advantage here is that the order of the separating surfaces cannot be changed (there is exactly one way to connect the additional surfaces to the spacers and thus to the base area).This largely eliminates errors in the assembly of the paint mist separation unit.

[0066] In a further preferred embodiment of the paint mist separation unit, at least the first additional surface has spacer recesses at its edge, particularly parallel to the edge, namely one spacer recess for each spacer. Examples of spacer recesses are slots (one slot for each spacer), and each slot is designed for inserting a section of each spacer. In a special embodiment, a first and second additional surface encompassed by the paint mist separation unit have spacer recesses, in particular each additional surface. Slots as spacer recesses are a simple yet sufficiently robust way of arranging the respective additional surface on the spacers of the 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0067] Base surface. After folding, the spacers—as described above—stand perpendicular or at least substantially perpendicular to the plane of the base surface. The respective additional surface can be placed on these spacers, and when the additional surface is pressed down towards the plane of the base surface, the spacers protrude through the slots in the additional surface. The additional surface is then held in place by the bridge section on one side and by the spacers on the other, and supported relative to the plane of the base surface or, if applicable, another additional surface.The slots and the ability to insert the spacers into them (in other words, the ability to place the additional surface onto the spacers and press it down along the spacers while the spacers simultaneously enter the slots) also ensure a clear and, in a sense, mandatory process when setting up the paint mist separation unit. Another example of spacer recesses are cutouts (spacer cutouts) at the edge of the respective additional surface. A slot used as a spacer recess has its entire edge line within the area of ​​the respective additional surface. With a cutout used as a spacer recess, its edge line coincides with a section of the edge line of the respective additional surface.For example, a slot becomes a spacer recess when the material between the slot and the adjacent edge of the respective additional surface is removed, i.e., when the upper and lower ends of the slot are cut to the edge. This creates a new edge of the additional surface. This new edge encompasses part of the former slot's edge. A recess used as a spacer recess offers the advantage that no insertion is required. 091 043 P WO NeuFilter GmbH, Gronau (DE).

[0068] To ensure the spacers are inserted correctly, the additional surface area must lie between the spacers due to the spacer recesses and in the area of ​​the spacer recesses, but still rest on a respective step of the spacers.

[0069] In a further preferred embodiment of the paint mist separation unit, the spacers have a stepped profile, in particular a stepped profile on both sides, optionally a stepped profile that is symmetrical on both sides. The steps resulting from the stepped profile act as a support (linear or at least substantially linear support surface; support edge) for the respective additional surface, and the respective height of the steps—together with the bridge sections—determines a distance between the separation surfaces.

[0070] A stepped profile on both sides ensures support on both sides for each additional surface. A stepped profile that is symmetrical on both sides ensures equally sized supports on both sides. With spacer steps of equal height, the distances between the base surface and the first additional surface, and potentially between any two further additional surfaces, are equal along the spacers. Due to the pairs of steps of equal height and correspondingly wide bridge sections, each additional surface is oriented parallel to the base surface. The first step of the spacers, or the second step of the spacers, etc., are pairs of steps, i.e., for example, pairs of steps of equal height. A stepped profile is understood to be a shape as known from the so-called stepped pyramid (there three-dimensional); the profile of the stepped pyramid in a side view is 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0071] a stepped profile, namely a stepped profile that is symmetrical on both sides.

[0072] One possible definition of an implementation form of such a paint mist separation unit is that the spacers for the first additional surface have a first stage and for the second additional surface a second stage, that the heights of all stages are the same, that the widths of the bridge sections are the same, and that the heights of the stages correspond to the widths of the bridge sections.

[0073] Referring to the width of the bridge sections assumes that the separation surfaces are still flat and that the connecting bridge sections are also flat. The width of a bridge section corresponds to the distance from one separation surface to the next along the material of the paint mist separation unit. With a paint mist separation unit ready for use, one would probably speak of the height of the bridge sections. The height is the distance between the planes defined by the separation surfaces connected to the bridge section. However, the actual value is the same in both cases. The terms "height" and "width" of a bridge section therefore refer to different perspectives and are interchangeable.

[0074] For a paint mist separation unit with one base surface and exactly two additional surfaces, the following configurations are possible, for example: Only the first additional surface has slots as spacer frames along its edge (first configuration), only the second additional surface has slots as spacer frames along its edge (second configuration), or both additional surfaces (first additional surface and 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0075] The second additional surface each has slots along its edge to act as spacer recesses (third configuration). In the first configuration, only the first additional surface is attached to the spacers by inserting the spacers into the slots of the additional surface, and only the first additional surface rests on the step of the spacers resulting from the stepped profile. The second additional surface rests on the free ends of the spacers. In the second configuration, the first additional surface rests on the steps of the spacers, but otherwise, for example due to spacer recesses there, between the two spacers without being inserted into slots, and the spacers are inserted into the slots of the second additional surface.In the third configuration, both additional surfaces are attached to the spacers by inserting the spacers into the slots of the respective additional surface, and each additional surface rests on a step of the spacers resulting from the stepped profile.

[0076] With more than two additional surfaces – at least two additional surfaces plus an additional final additional surface (end surface) – configurations corresponding to the first, second, and third configurations are generally possible: Analogous to the first configuration, either the spacers extend through the slots of the at least two additional surfaces, and each such additional surface rests on a step of the spacers resulting from the stepped profile, and the end surface (the additional surface furthest from the base surface) rests on the free ends of the spacers. Analogous to the second configuration, at least the end surface has slots at its edge, and the spacers are inserted into the slots of the end surface. 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0077] The additional surfaces between the base surface and the end surface can have slots at their edges or be free of such slots, for example, having spacer recesses. If they have slots, the spacers are inserted into and passed through these slots. If they have no slots, they rest on the respective step of the spacers; otherwise, they rest between the spacers. Alternatively, analogous to the third configuration, the spacers extend through the slots of all additional surfaces, and each additional surface rests on a step of the spacers resulting from the stepped profile, including the last additional surface furthest from the base surface, i.e., the end surface.

[0078] In a paint mist separation unit with two or more additional surfaces, for example, a paint mist separation unit with a first additional surface and a second additional surface, each with spacer frames at its edge, it is advantageously provided that the length of the spacer frames in the additional surfaces decreases with increasing distance from the base surface. In a paint mist separation unit with exactly two additional surfaces, wherein the first additional surface is connected to the base surface and the second additional surface is connected to the first additional surface, namely via a bridge section in each case, the length of the spacer frames in the second additional surface is shorter than the length of the spacer frames in the first additional surface, because the second additional surface is further away from the base surface than the first additional surface (increasing distance).When using slots as spacer inserts, it is clear how their length is measured, namely from one end to the opposite end. Generally, a length of 091 043 P WO NeuFilter GmbH, Gronau (DE) is used.

[0079] The spacer edges are measured along the adjacent edge of the respective additional surface, and their length is matched to the width of the steps of the spacer's step profile. The step height and the width (or, depending on the perspective, the height) of the bridge sections are mutually coordinated, i.e., equal or at least substantially equal. In other words, the width / height of a bridge section corresponds to the height of a respective step, and vice versa.

[0080] In an advantageous embodiment, the paint mist separation unit has at least one spacer opposite each other at the edges of the base surface, for example, exactly two spacers opposite each other at the edges of the base surface. Exactly two spacers opposite each other at the edges of the base surface are sufficient for attaching the additional surfaces when preparing the paint mist separation unit for use. Furthermore, exactly two opposing spacers are sufficient to hold the additional surfaces attached to them, and thus connected to the base surface, in a defined position in space, namely in a defined plane. The defined position in space is achieved as soon as the respective additional surface rests on a respective step of the spacers or on the free end of the spacers.Exactly two opposing spacers do not preclude at least one further spacer at another edge of the first separation surface. Each additional spacer can prevent the paint mist separation unit from becoming additionally stable and, for example, prevent the additional surface(s) from deflecting. A design with exactly two opposing spacers also expressly excludes 091 043 P WO NeuFilter GmbH, Gronau (DE).

[0081] A multi-part design of one or both spacers is not possible. For example, instead of two opposing spacers, a design with two pairs of opposing spacers is also conceivable.

[0082] Optionally, the spacers are integrally bonded to the base surface, meaning the base material extends into the spacers. This is advantageous because the spacers cannot be lost when preparing the paint mist separation unit for use.

[0083] Overall, the proposed innovation is also a paint mist separation device with a paint mist separation unit as described here and below. The paint mist separation device is designed and configured to accommodate at least one ready-to-use paint mist separation unit inside its frame and / or to attach at least one ready-to-use paint mist separation unit to the outside of its frame.

[0084] Another way to define the paint mist separation unit is that the first separation surface and the subsequent separation surfaces form a stack of separation surfaces, and that this stacking is achieved by means of and at the spacers. The paint mist separation unit remains—as already described—a paint mist separation unit designed and configured for use with or in a paint mist separation device, namely a paint mist separation device for interchangeable installation in a paint shop and for separating particles carried along with a raw gas stream, in particular paint particles. The paint mist separation unit comprises—as per 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0085] As previously described, the unit comprises a primary separation surface (base surface) and multiple additional separation surfaces (additional surfaces) that can be connected to the base surface and are connected to it when ready for use. Furthermore, as also previously described, the paint mist separation unit includes at least two multi-stage spacers extending from and laterally adjacent to the base surface. With regard to stackability, the unique feature of the paint mist separation unit, which can be used in conjunction with the paint mist separation device, can also be understood as follows: the additional surfaces on the spacers are stackable at different levels, particularly levels parallel to each other and / or to the plane of the base surface, and are stacked when ready for use.

[0086] The advantage of such a paint mist separation unit is that several (at least two) additional surfaces can be successively placed on the multi-stage spacers of the base surface, or rather, stacked on the spacers. This placement / stacking is achieved by placing each additional surface – optionally in an orientation parallel or at least substantially parallel to the base surface – with its spacer frames onto the spacers and lowering it onto a respective stage of the multi-stage spacers, or – in the case of a final additional surface with or without spacer frames – by placing it on the free end of the spacers. The spacer frames then enclose the spacers in the area of ​​a transition from one stage to the next, and each stage of the spacers, and possibly the free end of the spacers, acts as a support.For slots as spacer frames, 091 043 P WO NeuFilter GmbH, Gronau (DE) is sufficient.

[0087] the spacers through the respective slots and each step of the spacers and, if necessary, the free end of the spacers acts as a support.

[0088] To explain the effectiveness of a spacer step as a support for an additional surface, it should be noted that the width of the spacers—specifically, the width measured along the edge of the base surface from which the spacer originates—changes from step to step due to the multi-step design. Viewed from the base surface, this width (hereinafter referred to as the effective width) decreases from step to step. Viewed from the free end of the spacers, the effective width increases from step to step. The length of the spacer edging in the additional surfaces is adjusted accordingly.

[0089] In a paint mist separation unit with, for example, exactly three separation surfaces (base surface, first and second additional surfaces), the following results: The spacers have their greatest effective width (first width bi) immediately adjacent to the base surface. At a certain distance from the base surface, the effective width decreases abruptly to a smaller effective width (second width bi; bi <bi) . Aufgrund dieser sprunghaften Breitenänderung resultiert eine Stufe (erste Stufe) . Bei einem nochmals weiteren Abstand von der Basisfläche sowie einem gewissen Abstand von der ersten Stufe verringert sich die wirksame Breite sprunghaft erneut, nämlich auf eine nochmals geringere wirksame Breite (dritte Breite ba; b3<bi<bi) .For the lengths li, 12 of the spacer frames in the first and second additional area, which decrease with increasing distance from the base surface, the following applies: The length of the spacer frames in the additional area with the 091 043 P WO NeuFilter GmbH, Gronau (DE).

[0090] The smallest distance from the base surface, i.e., the length li of the spacer edges in the first additional surface, is less than the first width bi and greater than or equal to the second width bi (li).<bi; l2> b2; b2dl1 <b2) und die Länge der Abstandshaltereinfassungen in der Zusatzfläche mit dem größeren Abstand von der Basisfläche, also die Länge 12der Abstandshaltereinfassungen in der zweiten Zusatzfläche, ist kleiner als die zweite Breite b2und größer oder gleich der dritten Breite b3(l2<b2; l2hb3; b3dl2<b2) .

[0091] The first additional surface, with its spacer frames of length 12, can therefore be placed on / lowered onto the spacers until they extend into the spacer frames at their second width b2, and the separating surface itself (first additional surface) rests on the spacers, specifically on the first step of the spacers. This is the area of ​​transition from the first width b2 to the second width b2. The same applies to the second additional surface. It, with its spacer frames of length 12, can be placed on / lowered onto the spacers until they extend into the spacer frames at their third width b3, and the separating surface itself (second additional surface) rests on the spacers, specifically on the second step of the spacers. This is the area of ​​transition from the second width b2 to the third width b3.

[0092] Figures 12 and 23 illustrate this. The above applies accordingly to a paint mist separation unit with more than three separation surfaces (first separation surface, more than two further separation surfaces). 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0093] The foregoing describes an embodiment in which the spacers have a number of steps corresponding to the number of additional surfaces, and vice versa. Alternatively, an embodiment is also conceivable in which the number of additional surfaces is one greater than the number of steps encompassed by each spacer. In this case, the last or outermost additional surface is placed on the free ends of the spacers and has no spacer edging (or at least does not require spacer edging).

[0094] The spacers enable and effect the connection of the additional surfaces with the base surface, namely with the spacers emanating from it, and the spacers, with their multi-stage design together with the bridge sections, enable and effect a defined distance between the additional surfaces and to the base surface.

[0095] Another alternative definition of the paint mist separation unit, with a different focus, states that the paint mist separation unit is intended and designed for use with or in a paint mist separation device, namely a paint mist separation device for interchangeable installation in a paint shop and for separating particles carried along with a raw gas stream, in particular paint particles; that the paint mist separation unit comprises a plurality of separation surfaces, wherein the plurality of separation surfaces includes a first separation surface – base surface –, a last separation surface – end surface – and at least one further separation surface – additional surface – located along the material of the paint mist separation unit between the first and the last separation surface; that the paint mist separation unit has at least two laterally attached to the 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0096] The base surface comprises adjoining, multi-stage spacers, wherein each additional surface has spacer recesses at its edge for inserting / receiving a section of each spacer, and that each additional surface and the end surface are stackable at the spacers in different planes, in particular planes parallel to each other and / or to the plane of the base surface.

[0097] In another notation, this definition reads as follows:

[0098] Paint mist separation unit

[0099] for use with or in a paint mist separation device, namely a paint mist separation device for interchangeable installation in a painting system and for separating particles carried along with a raw gas stream, in particular paint particles,

[0100] with a plurality of separation surfaces,

[0101] wherein the majority of separation surfaces comprise a first separation surface - base surface -, a last separation surface - end surface - and at least one further separation surface - additional surface - located along the material of the paint mist separation unit between the first and the last separation surface,

[0102] with at least two multi-stage spacers adjoining the base surface laterally,

[0103] wherein each additional surface has spacer recesses at its edge for inserting / receiving a section of a spacer and

[0104] wherein the additional surface or surfaces and the end surface on the spacers are stackable in different planes, in particular planes parallel to each other and / or to the plane of the first separation surface. 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0105] This definition adopts the previously used designation of one of the additional separation surfaces, referred to as the supplementary surface, as the final surface. The separation surfaces thus comprise two outer separation surfaces: a first separation surface (base surface) and a final separation surface (final surface). Again, the designation serves only for differentiation and does not imply any function.With reference to these outer separation surfaces, the two possible alternatives of the paint mist separation unit that can be used together with the paint mist separation device proposed here can be summarized briefly and concisely: namely, the alternative in which all further separation surfaces (additional surface(s) and end surface) have spacer frames on their surface and at their edge for attachment to the spacers, and also the alternative in which one last further separation surface (end surface) does not have such spacer frames, but all other further separation surfaces (additional surface(s)) do.

[0106] The definition is based on the premise that all separation surfaces (additional surfaces) located between the two outer separation surfaces (base surface, end surface) must have such spacer frames, and does not exclude the possibility that the end surface may also have such spacer frames. The definition concludes by stating that the additional surface(s) and the end surface can be arranged (stacked) on the spacers in different planes, in particular planes parallel to each other and / or to the plane of the base surface. This also applies to an end surface with spacer frames. In this case, the ends of the spacers also protrude through their 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0107] through spacer frames. This also applies to a finishing surface without spacer frames. In that case, the finishing surface rests on the free ends of the spacers. This definition is expressly intended as a replacement for the definition of the paint mist separation unit above, and all previously described embodiments are also possible embodiments of the paint mist separation unit according to this alternative definition.

[0108] A method for preparing a paint mist separation unit for use, as described here and below, comprises at least the following process steps:

[0109] The spacers extending from the base surface are folded against the plane of the base surface, so that they form an angle of 60° to 120° with the base surface, advantageously an angle of 70° to 110°, preferably an angle of 80° to 100°, in particular a right angle or at least substantially a right angle.

[0110] The additional surfaces are arranged successively in particularly parallel or at least substantially parallel planes by bending the paint mist separation unit immediately before and immediately after each bridge section and by connecting it to the base surface, namely to its spacers.

[0111] The innovation proposed here also includes its use, namely the use of a paint mist separator for separating particles carried along with a raw gas stream and with a separation unit attached or attachable to it as described here and below. 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0112] The patent claims filed with the application are proposed formulations without prejudice to obtaining further patent protection. Since the features of the dependent claims, in particular, may constitute independent inventions with regard to the prior art on the priority date, the applicant reserves the right to make these or further combinations of features, previously disclosed only in the description and / or drawings, the subject matter of independent claims or divisional declarations. These may also include independent inventions that exhibit a design independent of the subject matter of the respective referenced claims.

[0113] An embodiment of the proposed innovation is explained in more detail below with reference to the drawing. Corresponding objects or elements are designated with the same reference numerals in all figures. For the sake of clarity, not all elements of a recurring element are labelled with the respective reference numeral. In such cases, reference is made to the designated elements or to any designation of the same element in other figures.

[0114] The exemplary embodiment is not to be understood as a limitation of the invention. Rather, additions and modifications are entirely possible within the scope of the present disclosure, in particular those which, for example, can be deduced by a person skilled in the art from the solution of the problem by combining or modifying individual features or process steps in conjunction with those described in the general or specific descriptive part and contained in the claims and / or the drawing, and which can be combined to create a new object or to 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0115] new process steps or process step sequences lead to .

[0116] They show

[0117] Fig. 1 shows a paint mist separation device with open support elements extending from its paint mist separation frame element.

[0118] Fig. 2 the paint mist separation device with a separation unit attached to its support elements, Fig. 3 and

[0119] Fig. 4 Snapshots during the installation of the separation unit,

[0120] Fig. 5 to

[0121] Fig. 8 Details of the supporting elements,

[0122] Fig. 9 to

[0123] Fig. 32 Details of two embodiments of a separation unit.

[0124] The illustration in Figure 1 shows a paint mist separation device 40, which is referred to below as separation device 40. This device is designed and configured for interchangeable installation in a painting system and for separating particles, in particular paint particles, carried along with a raw gas stream.

[0125] The separating device 40 has a paint mist separating frame element 44, hereinafter referred to as frame element 44. The frame element 44 has a cubic shape with rectangular, in particular square, side faces. The frame element 44 is, for example, a cardboard box made of corrugated board or the like, namely a cardboard box such as is otherwise used for packaging purposes. 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0126] The frame element 44 typically surrounds at least one separation or filter element (not shown here). This element is located inside the frame element 44. In the proposed innovation, it is irrelevant whether there is anything inside the frame element 44 and, if so, what it is.

[0127] When separating particles carried along with a raw gas stream, especially paint particles, the separating device 40 is permeated by the raw gas stream. For this purpose, the frame element 44 has an inlet opening 46 (the reference line leads to a horizontal edge line of the opening) and an outlet opening not visible in the figures. In the illustration in Figure 1, the view focuses on the open inlet opening 46. This is bounded by pairs of opposing edge lines. For differentiation, two of the opposing edge lines are referred to as vertical edge lines. These are parallel to each other. At least one pivotable support element 42 extends from each of these vertical edge lines. Due to their door-like pivotability, the support elements 42 are sometimes referred to individually as doors 42 and together as doors 42.The load-bearing elements 42 – the doors 42 – are optionally integrally connected to the material of the frame element 44; the frame material merges seamlessly into the doors 42. A bend line between the material of a respective door 42 and the adjacent frame material then acts as a hinged connection between the door 42 and the frame element 44.

[0128] Figure 2 shows the separating device 40 from Figure 1 with a separating unit 10 attached to it, hereinafter referred to as separation unit 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0129] Paint mist separation unit 10. In the embodiment shown, the separation unit 10 is mounted by means of the doors 42 of the separation device 40 and by means of suspension plates 36 encompassed by the separation unit 10, which are described in further detail below. The doors 42 extend into the suspension slots 36 of the separation unit 10 and / or through the suspension plates 36 in a state pivoted by 90° or at least substantially by 90°, namely in a state pivoted in this direction against a plane defined by the frame element 44 (its front face). In the illustration in Figure 2, the ends of the doors 42 extending through the suspension plates 36 on the front face of the separation unit 10 can be seen.

[0130] It should be noted that suspension slots 36 in the separation unit 10, namely lateral, parallel slots in all or at least some of the separation surfaces 12 of the separation unit 10, are an option. Instead of suspension slots 36, or in addition to suspension slots 36, openings 36, in particular openings 36 with at least one straight edge, in the surfaces of the separation surfaces 12 for inserting the doors 42 are also possible. These doors 42 are already enclosed by the separation surfaces 12 for the purpose of separating particles from a raw gas stream. Furthermore, instead of suspension slots 36, or openings 36 already enclosed by the separation surfaces 12, or in addition to these, recesses (not shown), in particular recesses with at least one straight edge, in the surfaces of the separation surfaces 12 for receiving a section of the doors 42 are also possible.Such recesses, such openings 36 and such suspension points 36 are hereinafter collectively referred to as support element enclosures 36 or 091 043 P WO NeuFilter GmbH, Gronau (DE).

[0131] These are referred to briefly as door frames 36, and the explanations regarding support element frames 36 from the preceding general part of the description apply. The description of the exemplary embodiment is continued with reference to the exemplary embodiment shown with door frames 36 in the form of suspension slots 36, but whenever a suspension slot 36 is mentioned, the more general embodiment, namely door frame 36, must always be implied.

[0132] The illustrations in Figure 3 and Figure 4 show snapshots of the attachment of a separation unit 10 to a separation device 40 by means of the doors 42 and the suspension slots 36, namely in an isometric view (Fig. 3) and a side view (Fig. 4).

[0133] Figures 5 and 6 show a separating device 40 with open doors 42 in a side view, namely once (Fig. 5) without a separating unit 10 attached to it and once (Fig. 6) the same separating device 40 with a separating unit 10 attached to its doors 42.

[0134] The illustrations show a preferred embodiment of the doors 42, which are shown in enlarged form in Figures 7 and 8. Figure 7 is an enlargement of the detail designated VII in Figure 5, and Figure 8 is an enlargement of the detail designated VIII in Figure 6.

[0135] In the illustration in Figure 5, it can be seen that the door 42 and also the non-visible door 42j each have an upper edge 48, and in the illustration in Figure 6, it can be seen that 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0136] that the doors 42 support the separating unit 10 by resting on the upper edges 48 and the separating surfaces 12 resting along the upper edges 48.

[0137] Particularly evident in Figure 5 is the fact that the door 42 (and preferably also the concealed, non-visible door 42) has an upper edge profile 48, which terminates in a stop 50 (Fig. 7, Fig. 8). Figure 8 shows that a separator unit 10 attached to the doors 42, with one of its separator surfaces 12, in particular the front / end separator surface 12, rests against the stop 50. The stop 50 thus prevents the separator unit 10 from detaching from the separator device 40 and its doors 42, for example, from falling.

[0138] In Figures 5 and 7, a further, essentially optional, embodiment of the upper edge profile of at least one or both doors 42 is also shown. In this embodiment, the upper edge profile begins with a spacer 52. The spacer 52 thus connects directly to the frame element 44 of the separating device 40. In the embodiment shown, the door 42 (and optionally also the door 42 not shown) also has such a spacer 52 in its lower edge profile. The spacer(s) 52 ensure a defined distance between the separating device 40 and its frame element 44 on the one hand, and the separating unit 10 attached to the doors 42 on the other. Spacers 52 on both doors 42 are preferred. Lower and upper spacers 52 on both doors 42 are particularly preferred. However, for example, an upper spacer 52 is also used on a door 42091 043 P WO NeuFilter GmbH, Gronau (DE)

[0139] and a lower spacer 52 at the other door 42 is considered.

[0140] Details of a separation unit 10, which can be attached to the separation device 40 and is used for paint mist separation on the separation device 40, are described with reference to the following figures (Figs. 9 to 32). There, the openings 36 in the separation surfaces 12, into which the doors 42 extend or through which the doors 42 extend, are shown by way of example as parallel lateral slots (suspension slots 36) in the separation surfaces 12. The suspension slots 36 are parallel to each other and each is parallel to the adjacent edge line of the respective separation surface 12. The suspension slots 36 are aligned with each other – as described above – in a first and a second group; All suspension points 36 of the first (left) group were aligned with each other, and all suspension points 36 of the second (right) group were aligned with each other.To avoid further repetition, reference is made to what was written above, which applies accordingly here.

[0141] The illustrations in Figure 9 and Figure 20 and the respective following figures (Fig. 10 to Fig. 19 and Fig. 21 to Fig. 29 respectively) show two embodiments of a separation unit 10 (paint mist separation unit 10) in different views.

[0142] It is expressly pointed out that, for the sake of clarity, not all reference numbers used here are included in all figures, and where reference numbers are not included in one figure, the other figures should be consulted. 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0143] The exemplary separation units 10 comprise several separation surfaces 12 (paint mist separation surfaces 12) connected to each other in pairs. The following designations are used to distinguish the separation surfaces 12: A first separation surface 12 is designated as a base surface 14. Each separation surface 12 following the base surface 14 along the material of the separation unit 10 is designated as an additional surface 16. One of the additional surfaces, in particular the last additional surface 16 along the material of the separation unit 10, is designated as a final surface 18. Any multiple additional surfaces 16 are distinguished by designation such as first additional surface 16, second additional surface 16, etc.

[0144] In the depicted embodiments, all separation surfaces 12 are square and of equal size. A square shape is a particularly preferred shape, but nevertheless an option. For the following description, it is assumed that the separation surfaces 12 are at least rectangular, i.e., that all boundary lines are straight lines and the interior angles enclosed by each of these are right angles.

[0145] The embodiment shown in Figure 9 and the following figures (Figures 10 to 19) comprises a base surface 14 and a first and a second additional surface 16, the second additional surface 16 functioning as a finishing surface 18. In this embodiment, all separation surfaces 12 (base surface 14, additional surfaces 16, finishing surface 18) are arranged one behind the other (in a row) along the material.

[0146] The embodiment shown in Figure 20 and the figures that follow it (Figures 21 to 29) comprises a base surface 14 as well as a first, second and third additional surface 16, wherein the 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0147] The third additional surface 16 functions as the end surface 18. In this embodiment, the separation surfaces 12 (base surface 14, additional surfaces 16, end surface 18) form an L-shape along the material. In the illustrated embodiment, the end surface 18 is located at the end of the short leg of the L-shape, but in principle, the base surface could also be located at the end of the short leg of the L-shape. In principle, the base surface 14 can also adjoin an additional surface 16 at any other point. Therefore, instead of the L-shape shown, for example, all separation surfaces 12 can be arranged in a row (as in Fig. 9) or in a Z-shape.

[0148] The base surface 14 is characterized by the fact that at least two spacers 20 are attached to its sides, in particular in one piece. In the embodiments shown, the separation unit 10 has exactly two spacers 20 opposite each other at two opposing edges of the base surface 14. This does not preclude embodiments with spacers 20 that are multi-part on one or both sides, or with an additional spacer 20 or a multi-part spacer 20 on an otherwise free edge of the base surface 14, and these are expressly included in the description presented here.

[0149] The spacers 20 are multi-stage spacers 20, and in the illustrated embodiments, these multiple stages are in the form of a stepped profile, more precisely in the form of a stepped profile that is symmetrical on both sides. The additional separation surfaces 12, i.e., the supplementary surfaces 16, can be stacked on the spacers 20 at different levels, in particular at levels parallel to each other and / or to the plane of the base surface 14. 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0150] Parallel planes result from pairs of equally high steps of the spacers 20 and a corresponding connection between the separating surfaces 12 (bridge sections 22; see below). The spacers 20 of the embodiment shown in Figures 9 to 19 each have two steps. The spacers 20 of the embodiment shown in Figures 20 to 29 each have three steps. When the steps are of equal height in pairs, the first steps of the two spacers 20 are the same height, and likewise, all subsequent steps of the two spacers 20 are each the same height.

[0151] All separating surfaces are integrally connected in pairs. Specifically, in the illustrated embodiment, the following connections exist: The base surface 14 and the first additional surface 16 are integrally connected (pairwise connection), and the first additional surface 16 and the second additional surface 16 are integrally connected (pairwise connection). This pairwise connection occurs when separating surfaces 12 are arranged in a row one behind the other, and conversely, such a pairwise connection also occurs when separating surfaces 12 are arranged in a row one behind the other. The integrally connected pairwise connection continues for any further additional surfaces 16, for example (not shown) in a row or "bent" (L-shape) as in Figure 20 and the figures following it.Accordingly, in the embodiment shown in Figure 20 and the figures following it, the second additional surface 16 and the third additional surface 16 are also integrally connected. This integral connection consists of a piece of material between the respective separation surfaces 12. This is referred to as the bridge section 22. 091 043 P WO NeuFilter GmbH, Gronau (DE).

[0152] The illustrations in Figures 9 and 20, and the figures that follow, also show a sequence of steps for preparing the respective separation unit 10 for use, i.e., for use as a means of separating particles, particularly paint particles, carried along with a raw gas stream. The illustrations show that and how the additional surfaces 16 on the spacers 20 can be stacked at different levels and are stacked when preparing the separation unit 10 for use. The views have been chosen to ensure the best possible visibility of the details. The resulting orientation of the separation unit 10 in space does not necessarily represent the orientation that would occur during actual handling by a user.

[0153] For stacking the additional surfaces 16 on the spacers 20, in the embodiment shown at least one additional surface 16 has slots 24 at its edge which function as spacer frames 24, namely one slot 24 each on two opposite edges, namely on the two opposite edges which adjoin the edge at which the additional surface 16 is integrally connected to a further separation surface 12 (base surface 14 or additional surface 16). The embodiment shown in Figure 9 and the subsequent figures depicts a separation unit 10 with exactly one additional surface 16 with such slots 24, and the embodiment shown in Figure 20 and the figures subsequently depicting it depicts a separation unit 10 with exactly two additional surfaces 16 with such slots 24. The further description continues with reference to the exemplary embodiment shown and thus with reference to slots 24 as spacer frames 24.Every mention of 091 043 P WO NeuFilter GmbH, Gronau (DE).

[0154] However, slot 24 always refers to the more general version, namely a spacer frame 24, which can be read along with it.

[0155] If, for the purpose of differentiation, the two slots 24 of an additional surface 16 j are each designated as left slot 24 and right slot 24, then in an embodiment with slots 24 in several additional surfaces 16 j, the slots 24 align.

[0156] (Fig. 20ff) on the one hand, all left slots 24 and on the other hand, all right slots 24 are aligned together; all left slots 24 lie one behind the other in one plane and all right slots 24 lie one behind the other in another plane. Optionally, the two planes are parallel to each other (as shown).

[0157] For stacking the additional surfaces 16 on the spacers 20, the slots 24 must be oriented in the same plane as spacers 20 folded over against the plane of the base surface 14, forming, for example, a right angle with it (Fig. 10, Fig. 21). Since the slots 24 lie in the same plane as spacers 20 folded over against the plane of the base surface 14, the slots 24 in each of the several separating surfaces 12 (Fig. 20) are aligned with each other. The orientation relative to an adjacent edge of the respective additional surface 16 is initially irrelevant, although in the illustrated embodiments with rectangular separating surfaces 12, the slots 24 run parallel to the respective adjacent edges of the additional surfaces 16.

[0158] How many additional surfaces 16 such slots 24 have at their edges depends on the one hand on the number of additional surfaces 16 and on the other hand on a respective 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0159] From the design form. With regard to the number of additional surfaces 16 of a respective separation unit 10, at least every additional surface 16 except for the last additional surface 16 (end surface 18) along the material of the separation unit 10 has such slots 24. However, depending on the design form, it is possible that the last additional surface 16 (end surface 18) also has such slots 24. With regard to the design, the last additional surface 16 (end surface 18) does not have such slots 24 if the last additional surface 16 rests / is intended to rest on the free ends of the spacers 20 when stacked, and naturally has such slots 24 if the spacers 20 are also intended to extend through the last additional surface 16, because then the slots 24 are necessary precisely for this extension.

[0160] The figures show two embodiments (Figs. 9 to 19 and Figs. 20 to 29), and in both embodiments, the last additional surface 16 does not have such slots 24. An embodiment in which the last additional surface 16 also has such slots 24 is therefore not explicitly shown. However, an embodiment with a last additional surface 16 having such slots 24 can readily be derived from the figures shown, for example, if the additional surface 16 designated as the end surface 18 in Figure 20 is omitted. Then the immediately preceding additional surface 16 becomes the last additional surface 16, and this surface has such slots 24.

[0161] During the transition from Figure 11 to Figure 12 and in the further execution form during the transitions from Figure 22 to Figure 23091 043 P WO NeuFilter GmbH, Gronau (DE)

[0162] As can be seen particularly well from Figure 24 to Figure 25, the spacers 20, when inserted into the slots 24 of the additional surface 16 or the respective additional surface 16, pass through these (through the plane of the additional surface 16) until the additional surface 16 rests on the respective step of the spacers 20 or (depending on the viewpoint) the spacers 20 with their respective step rest on the additional surface 16.

[0163] During the transition from Figure 13 to Figure 14, the end surface 18 is folded over and thereby abuts the free ends of the spacers 20, i.e., it is placed on the free ends of the spacers 20, or (depending on the perspective) the spacers 20 abut the end surface 18 with their free ends.

[0164] The introductory description mentions configurations in which at least one additional surface 16 does not have such slots 24, but nevertheless rests on a respective step of the spacers 20. In these cases, recesses (spacer recess 24; Fig. 32) that also function as spacer edges 24 replace the slots 24. A slot 24 runs with its entire boundary line within the area of ​​the respective additional surface 16. In the case of a spacer recess 24, its boundary line coincides with a section of the boundary line of the respective additional surface 16. For example, a slot 24 becomes a spacer recess 24 when the material between the slot 24 and the adjacent boundary line of the respective additional surface 16 is removed, i.e., when it is cut from the upper and lower ends of the slot 24 to the boundary line. Then a new boundary line of the additional area 16 is created.This closes part of the boundary line of 091 043 P WO NeuFilter GmbH, Gronau (DE).

[0165] former slot 24. Such a spacer recess 24 offers the advantage that no insertion and passing through of the spacers 20 is necessary, that the respective additional surface 16 lies between the spacers 20 due to the spacer recesses 24 and in the area of ​​the spacer recesses 24, but still rests on a respective step of the spacers 20.

[0166] In the case of an additional surface 16 with spacer recesses 24 instead of slots 24 or at least one spacer recess 24 instead of a slot 24, the edge line of the spacer recess 24 or each spacer recess 24 lies in the same plane as spacers 20 folded over against the plane of the base surface 14 and forming, for example, a right angle with it, and the spacer recess 24 or each spacer recess 24 is aligned with the slot 24 of at least one further additional surface 16 lying in the same plane.

[0167] Figure 32 shows an example of a section of an additional surface 16 and the spacer recesses 24 located therein: at the top, a spacer recess 24 in the form of a slot 24; in the middle, a spacer recess 24 in the form of a recess 24; and at the bottom, a spacer recess 24 with lateral locking lugs 26. With a spacer recess 24 acting as a spacer recess 24, the spacer 20 can be folded laterally onto the respective additional surface 16 and into the spacer recess 24 therein. Optional locking lugs 26 secure a spacer 20 folded into the spacer recess 24. (NeuFilter GmbH, Gronau, Germany)

[0168] Figures 18 and 19 show the resulting, ready-to-use separation unit 10 of the embodiment shown in Figure 9 from different perspectives: once (Fig. 18) from the front and once (Fig. 19) from the rear. The separation unit 10, originally flat (Fig. 9), has now become a three-dimensional unit with several (stacked) separation surfaces 12 arranged in several planes – parallel in the illustrated embodiment. The resulting stack of separation surfaces 12 (separation surface stack) is visible, formed by the arrangement of the separation surfaces 12 one behind the other and at the spacers 20. For orientation, the base surface 14 and the end surface 18 are labeled.

[0169] For these figures, all previous figures and also all subsequent figures, the surface structure shown of the individual deposition surfaces 12, namely the surface structure with wave-shaped openings, is only an example and is by no means to be interpreted as restrictive.

[0170] However, it should be noted that each separation surface 12 has a surface structure with openings.

[0171] In the illustrations in Figure 18 and Figure 19 it can be clearly seen that the end surface 18 only rests on the free ends of the spacers 20 and accordingly the spacers 20 are not inserted there (the end surface 18 has no slots for inserting the spacers).

[0172] Figures 20 to 29 show the embodiment with an additional separation surface 12 compared to the embodiment shown in Figures 9 to 19, namely an additional surface 16. The preceding explanations 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0173] The above also applies analogously to this embodiment, and to avoid repetition, reference is made to it here. Figures 28 and 29 show the resulting, ready-to-use separation unit 10 from different perspectives: once (Fig. 28) from the front and once (Fig. 29) from the rear. Here, too, the separation unit 10, originally in a flat form (Fig. 20), has been transformed into a separation unit 10 with a three-dimensional shape, featuring several (stacked) separation surfaces 12 arranged in several planes – parallel in the embodiment shown. Again, the resulting stack of separation surfaces 12 (separation surface stack) is clearly visible, resulting from the arrangement of the separation surfaces 12 one behind the other and at the spacers 20. For orientation, the base surface 14 and the end surface 18 are again labeled.

[0174] The exemplary versions shown in the figures exhibit certain, essentially optional, features, which are briefly explained below with reference to Figures 30 and 31. The illustration in Figure 30 corresponds to the illustration in Figure 9, and the illustration in Figure 31 corresponds to the illustration in Figure 20. Additional reference numbers, not used in the preceding figures, are included for the features to be described. For reference numbers not repeated here, please refer to the preceding figures.

[0175] Optional features include individual separating surfaces having 12 tabs 30, which terminate in a tongue that is inserted into designated slots, these slots being distinguished from the slots already mentioned (there: reference number 24) as 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0176] The tongue receptacles 32 are referred to as tongue receptacles. Without their tongue, the tabs 30 constitute a (simple) step, namely a step exactly like a step of the spacers 20, and in this respect, the tabs 30 function exactly like a step of the spacers 20 as a support for a separating surface 12. A tongue inserted into a respective tongue receptacle 32 fixes the respective tab 30 in an upright position, and the separating surface 12 with the tongue receptacle 32 rests on the step formed by the tab 30. This supports the separating surface 12, which is otherwise supported by the respective step of the spacers 20, on another side. Specifically, each separating surface 12 is thus supported by the spacers 20 on two sides, namely on two opposite sides.Furthermore, each separation surface 12 is supported on a third side by means of the bridge section 22 and the separation surface 12 is now also supported on the previously free fourth side by means of the tab 30.

[0177] In the embodiment shown in Figures 9 to 19, the separating unit 10 comprises two tabs 30 (Fig. 30), and in the embodiment shown in Figures 20 to 29, the separating unit 10 comprises four tabs 30 (Fig. 31). The special feature of the embodiment with four tabs 30 is a double-width tongue receptacle 32 for the tongues of two tabs 30. The tabs are each integrally connected to the respective separating surface 12.

[0178] In the illustrations in Figures 15 to 19 and Figures 26 to 29, these tabs 30 (each with tongues inserted into the provided tongue receptacle 32) are visible, and it can be seen that the means 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0179] The additional surface 16 supported by the tab 30 rests on the support (support edge) formed by means of the tab 30.

[0180] The illustrations show embodiments with a larger number of slots, theoretically functioning as tongue receptacles 32, than are actually required for the respective embodiment. Such slots are therefore optional and can be used, for example, for attaching additional components.

[0181] Optional features also include (additionally or alternatively) the fact that the end surface 18 has spacers 34. These extend from two opposing edge lines of the end surface 18, to which no bridge section 22 adjoins. The spacers 34 are initially tab-like extensions extending from the end surface 18 and integrally connected to it. These are foldable in the middle, and the resulting surface sections are laid flat on top of each other. The spacer 34 thus obtained is then folded over against the plane of the end surface 18, so that it forms a right angle, or at least substantially a right angle, with the end surface 18.In this position, the spacer 34 is fixed by inserting the tabs extending from the free edge into recesses provided for this purpose on the base of the spacer 34 (directly next to the fold line between the spacer 34 and the surface of the end surface 18).

[0182] Figures 18 and 19, as well as Figures 28 and 29, show the separation unit 10 with these spacers 34. The spacers 34 serve, for example, to ensure a distance between each pair of 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0183] Separation units 10 or between a separation unit 10 and another element for separating particles carried along with a raw gas stream, in particular paint particles, for example when these are placed one after the other (one after the other in the direction of a raw gas stream passing through the separation units 10) inside a separation device 40 or in front of a separation device 40.

[0184] Finally, among the optional features (also additionally or alternatively) is that the separation surfaces 12 have suspension plates 36. In the illustrated embodiment, all separation surfaces 12 have suspension plates 36 in a fundamentally optional manner. Each separation surface 12 has the suspension plates 36 adjacent to two opposing edges in the form of two mutually parallel suspension plates 36, and in a ready-to-use separation unit 10, the suspension plates 36 of each separation surface 12 are aligned with each other (Fig. 18, Fig. 19; Fig. 28, Fig. 29).If, for the sake of differentiation, the two suspension plates 36 of each separation surface 12 are designated as left suspension plates 36 and right suspension plates 36 respectively, this means that in a ready-to-use separation unit 10, all left suspension plates 36 and all right suspension plates 36 are aligned with each other; all left suspension plates 36 lie one behind the other in one plane, and all right suspension plates 36 lie one behind the other in another plane. Optionally, the two planes are parallel to each other (as shown). In the illustrated embodiments, the separation units 10 have these suspension plates 36 in the base surface 14 adjacent to those edges of the base surface 14 from which the spacers extend. Due to the condition of the escape 091 043 P WO NeuFilter GmbH, Gronau (DE).

[0185] This determines the position and orientation of the suspension slots 36 in the other separation surfaces 12.

[0186] The suspension plates 36 are designed for mounting the separator unit 10 externally in front of a separator device 40. They are referred to as suspension plates 36 because they are designed to allow passage through door-like openings, referred to here briefly as door 42 (Fig. 24), which extend from the separator device 40. The following applies to the suspension plates 36 in principle, as described above regarding the slots 24 in additional surfaces 16: The general form of such a slot 24 is a spacer frame 24, and at least one slot 24 or a spacer recess 24, as described above, can be used as a spacer frame 24.This also applies here to the suspension plate 36, and every suspension plate 36 intended for inserting a door 42 or receiving a section of a door 42 can generally be referred to as a door frame 36. A corresponding door frame recess can also function as a door frame 36, whereby, for example, a suspension plate 36 becomes a door frame recess when the material between the suspension slot 36 and the adjacent edge line of the respective separation surface 12 is removed, i.e., when the upper and lower ends of the suspension plate 36 are cut to the edge line. This creates a new edge line of the separation surface 12, which includes part of the edge line of the former suspension plate 36.Here too, it applies that the description presented here is based on the exemplary design shown with door frames 36 in the form of suspension plates 36, but that nevertheless, whenever a suspension plate 36 is mentioned, the more general design, namely door frame 36, is implied. 091 043 P WO NeuFilter GmbH, Gronau (DE).

[0187] For separating surfaces 12 with spacer frames 24 and simultaneously with door frames 36, only one of the frames 24, 36, namely the outer frame 24, 36, can be designed as a recess (spacer recess 24, door frame recess). If the door frames 36 or one of the door frames 36 is to be designed as a recess, the spacer frames 24 or the respective spacer frame 24 is designed as a slot. In this case, the spacer frame 24 and the door frame 36 essentially reverse their positions compared to the illustrated design, with the door frame 36 being on the outside (as a recess) and the spacer frame 24 being on the inside (as a slot).

[0188] The illustration in Figure 2 shows a separating device 40, for example a separating device 40 of the type described in EP 2 532 409 B, with a separating unit 10 attached to the outside of the separating device 40 by means of the suspension slots 36 as described here. The attachment to the outside of the separating device 40 is achieved by guiding the doors 42 through the suspension slots 36 (a left door 42 through the left suspension slots 36, a right door 42 through the right suspension slots 36) or – depending on the perspective – the separating unit 10 is placed / attached to the doors 42 in such a way that they extend through the suspension slots 36. The illustration in Figure 1 shows a separating device 40 individually with open doors 42, after the doors 42 are partially difficult to see in the illustration in Figure 2.Figure 1 shows the separator device 40 with its doors 42 in a configuration suitable for attaching a separator unit 10 to the outside of the separator device 40. The doors 42, when open, provide access to the outside. 091 043 P WO NeuFilter GmbH, Gronau (DE).

[0189] The opening into the interior of the separator device 40 is free. This opening is the so-called inlet opening. When the separator unit 10 is mounted externally in front of a respective separator device 40 using the suspension slots 36 and the doors 42, the separator unit 10 is therefore located in front of the inlet opening.

[0190] The embodiment shown, with suspension slots 36 in all separation surfaces 12, is a preferred option, but in any case, only an option. It is equally possible that only some separation surfaces 12 have such suspension slots 36, and that the remaining separation surfaces 12 are narrower or have recesses, for example, door frames 36, so that they fit between the doors 42 inserted into the suspension slots 36.

[0191] In the illustrated embodiments, the separation unit 10 is a single part comprising all required surface sections (separation surfaces 12, base surface 14, additional surface(s) 16, end surface 18, spacers 20, bridge sections 22, optionally tabs 30, optionally spacers 34). The separation unit 10 can be prepared for use simply by folding / creasing along the boundary lines of the aforementioned surface sections, which may be prepared by punching or the like. Preparation for use is carried out simply by folding / creasing along these boundary lines, as shown in the figures (Figs. 10 to 18, 19 and Figs. 21 to 28, 29). The separation surfaces 12 are stacked, particularly in parallel planes, resulting in a separation unit 10 with a stack of separation surfaces. 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0192] Key aspects of the paint mist separation unit 10 can be summarized as follows: The paint mist separation unit 10 is designed and configured for use with or in a paint mist separation device 40, namely a paint mist separation device 40 for interchangeable installation in a painting system and for separating particles carried along with a raw gas stream, in particular paint particles.It comprises a first separation surface 12 - base surface 14 - and at least two further separation surfaces 12 - first additional surface 16, second additional surface 16 - and at least two multi-stage spacers 20 adjoining the first separation surface 12 laterally, wherein the further separation surfaces 12 are stackable on the spacers 20 in different planes, in particular planes parallel to each other and / or to the plane of the first separation surface 12, and wherein the separation surfaces 12, in particular on the one hand the base surface 14 and the first additional surface 16 and on the other hand the first additional surface 16 and the second additional surface 16, are each joined to each other in pairs in one piece.

[0193] The combination, i.e., a separation device 40 with a separation unit 10 attached to it on the one hand by means of the support elements 42 (“doors” 42) and on the other hand by means of the suspension plates 36 - or generally by means of door frames 36 in the separation surfaces 12 - is also overall a device (paint mist separation device 40) for interchangeable installation in a painting system and for the separation of particles carried along with a raw gas stream, in particular paint particles.

[0194] Key aspects of the description presented here can be summarized as follows: 091 043 P WO NeuFilter GmbH, Gronau (DE)

[0195] A paint mist separation device 40 for interchangeable installation in a painting system and for separating particles carried along with a raw gas stream is specified, comprising a paint mist separation frame element 44 and a paint mist separation unit 10 attachable to the paint mist separation frame element 44, wherein the paint mist separation frame element 44 has an inlet opening 46, wherein a pivotable support element 42 (exactly one pivotable support element 42 or at least one pivotable support element 42) extends from each vertical edge line of the inlet opening 46, and wherein the paint mist separation unit 10 can be attached to the paint mist separation frame element 44 by means of the support elements 42.by extending the support elements 42 into openings 36 of the paint mist separation unit 10 in a state pivoted, for example, by 90° or at least substantially by 90° relative to a plane defined by the paint mist separation frame element 44, and / or extending through such openings 36. 091 043 P WO NeuFilter GmbH, Gronau (DE),

[0196] Reference symbol list

[0197] 10 Paint mist separation unit, separation unit 12 Paint mist separation surface, separation surface 14 Base surface

[0198] 16 additional areas

[0199] 18 End surface

[0200] 20 spacers

[0201] 22 Bridge section

[0202] 24 slots

[0203] 26 Edge nose

[0204] 28 (free)

[0205] 30 tab

[0206] 32 tongue recording

[0207] 34 spacers

[0208] 36 Opening (in a separation area) ,

[0209] Support element framing, door framing,

[0210] On hanging slot

[0211] 38 (free)

[0212] 40 paint mist separator device,

[0213] Separation device

[0214] 42 Support element, door

[0215] (at the separator)

[0216] 44 Paint mist separator frame element, frame element 46 Inlet opening

[0217] 48 Top edge

[0218] 50 strikes

[0219] 52 spacers

Claims

091 043 P WO NeuFilter GmbH, Gronau (DE) Patent claims 1. Paint mist separator (40) for interchangeable installation in a paint shop and for the separation of particles carried along with a raw gas stream and with a paint mist separation frame element (44) and with a paint mist separation unit (10) that can be attached to the paint mist separation frame element (44), wherein the paint mist separator frame element (44 ) has an inlet opening (46), wherein a pivotable support element (42) extends from each vertical boundary line of the inlet opening (46), wherein the paint mist separation unit (10) can be attached to the paint mist separation frame element (44) by means of the support elements (42) by extending the support elements (42) into openings (36) or recesses of the paint mist separation unit (10) in a state pivoted relative to a plane defined by the paint mist separation frame element (44), in particular by 90° or at least substantially by 90°, and / or through such openings (36) or recesses, wherein the paint mist separation unit ( 10) comprises a plurality of paint mist separation surfaces ( 12 ), wherein the paint mist separation unit ( 10) has in the paint mist separation surfaces ( 12 ) a first group and a second group of aligned openings (36) or recesses and wherein each supporting element (42 ) is placed in each of the groups of mutually aligned openings (36) or recesses 63091 043 P WO NeuFilter GmbH, Gronau (DE) extends inwards and / or through each of the groups of interconnected openings (36) or recesses.

2. Paint mist separation device (40) according to claim 1, wherein the support elements (42) have an upper edge (48) and wherein the support elements (42 ) support the paint mist separation unit ( 10) by resting on the upper edges (48 ).

3. Paint mist separation device (40) according to claim 1 or 2 and with a plurality of parallel paint mist separation surfaces ( 12 ).

4. Paint mist separation device (40) according to claim 1, 2 or 3, wherein parallel lateral slots - suspension slots (36) - function as aligned openings (36) and the supporting elements (42) extend into the suspension points (36) and / or through the suspension points (36).

5. Paint mist separation device (40) according to one of the preceding claims, wherein the supporting elements (42 ) have a stepped top edge profile in their upper edge (48 ) and where the top edge profile ends in a stop (50).

6. Paint mist separation device (40) according to one of the preceding claims, wherein the paint mist separation unit ( 10) comprises a plurality of paint mist separation surfaces ( 12 ), namely a 64091 043 P WO NeuFilter GmbH, Gronau (DE) first separation surface ( 12 ) - base surface ( 14 ) - and at least two further separation surfaces ( 12 ) - first additional surface ( 16 ), second additional surface ( 16 ) -, wherein at least two multi-stage spacers (20) connect laterally to the first separation surface ( 12 ), wherein the further separation surfaces ( 12 ) are stackable on the spacers (20) in different planes, in particular planes parallel to each other and / or to the plane of the first separation surface ( 12 ) and wherein the separation surfaces ( 12 ) are each connected to each other in pairs in one piece.

7. Method for manufacturing a paint mist separation device (40) according to any one of claims 1 to 6, wherein the support elements (42 ) are pivoted against a plane defined by the paint mist separation frame element (44 ) and in the pivoted state the paint mist separation unit ( 10 ) is attached to the support elements (42 ) by extending the support elements (42 ) into and / or through one of the groups of aligned openings (36) or recesses of the paint mist separation unit ( 10 ).

8. Use of a paint mist separation device (40) according to one of claims 1 to 6 for separating particles carried along with a raw gas stream. 65

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